EP 2971484 A4 20161116 - ENHANCED OIL PRODUCTION USING CONTROL OF WELL CASING GAS PRESSURE
Title (en)
ENHANCED OIL PRODUCTION USING CONTROL OF WELL CASING GAS PRESSURE
Title (de)
VERBESSERTE ÖLFÖRDERUNG UNTER VERWENDUNG DES GASDRUCKS IN EINER BOHRLOCHVERROHRUNG
Title (fr)
PRODUCTION AMÉLIORÉE DE PÉTROLE À L'AIDE D'UNE COMMANDE DE LA PRESSION DE GAZ DU CUVELAGE DE PUITS
Publication
Application
Priority
- US 201361783423 P 20130314
- US 201313923452 A 20130621
- US 2014021828 W 20140307
Abstract (en)
[origin: US2014262238A1] There is provided a system for producing oil from a well bore extending through a fossil fuel reservoir. The system includes a plurality of perforations defined in the casing proximate the fossil fuel reservoir. A gas flow tube is in communication with the annulus volume of the casing proximate the wellhead. A gas valve is coupled to the gas flow tube, with the gas valve configured to selectively open and close the gas flow tube. A controller, is coupled to the gas valve, with the controller configured to control the opening and closing of the gas valve. The opening and closing of the gas valve maximizes the volumetric rate of oil flow into the annulus volume through the perforations from the reservoir by displacing liquid in the annulus volume with a gas volume between the gas valve and the perforations.
IPC 8 full level
E21B 43/12 (2006.01); E21B 47/00 (2012.01)
CPC (source: EP US)
E21B 43/12 (2013.01 - EP US); E21B 43/121 (2013.01 - EP US); E21B 47/008 (2020.05 - EP US)
Citation (search report)
- [XI] US 6702028 B1 20040309 - HEGGHOLMEN JON KARE [NO]
- [XA] US 6497287 B1 20021224 - PODIO AUGUSTO L [US], et al
- [A] US 2008067116 A1 20080320 - ANDERSON ROBB G [US], et al
- [A] US 6119781 A 20000919 - LEMETAYER PIERRE [FR], et al
- [A] US 6446014 B1 20020903 - OCONDI CHAM [US]
- [A] WO 0236936 A1 20020510 - WEATHERFORD LAMB [US], et al
- [A] US 6089322 A 20000718 - KELLEY TERRY E [US], et al
- See also references of WO 2014159068A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 2014262238 A1 20140918; US 9528355 B2 20161227; AR 095390 A1 20151014; AU 2014241404 A1 20151001; AU 2014241404 B2 20170413; BR 112015023458 A2 20170404; BR 112015023458 B1 20180410; CA 2905218 A1 20141002; CA 2905218 C 20191119; EA 201591724 A1 20160129; EP 2971484 A1 20160120; EP 2971484 A4 20161116; EP 2971484 B1 20180221; MX 2015012588 A 20160112; WO 2014159068 A1 20141002
DOCDB simple family (application)
US 201313923452 A 20130621; AR P140100932 A 20140313; AU 2014241404 A 20140307; BR 112015023458 A 20140307; CA 2905218 A 20140307; EA 201591724 A 20140307; EP 14772644 A 20140307; MX 2015012588 A 20140307; US 2014021828 W 20140307